Electrical Cables The advantage of cables over overhead transmission lines is Can be used in high voltage circuits Low cost Can be used in congested areas Easy maintenance Can be used in high voltage circuits Low cost Can be used in congested areas Easy maintenance ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables If a cable of homogeneous insulation has a maximum stress of 10 kV/mm, then the dielectric strength of insulation should be 5 kV/mm 30 kV/mm 10 kV/mm 15 kV/mm 5 kV/mm 30 kV/mm 10 kV/mm 15 kV/mm ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Solid type cables are considered unreliable beyond 66 kV because There is a danger of breakdown of insulation due to the presence of voids Insulation may melt due to higher temperature Of corona loss between conductor and sheath material Skin effect dominates on the conductor There is a danger of breakdown of insulation due to the presence of voids Insulation may melt due to higher temperature Of corona loss between conductor and sheath material Skin effect dominates on the conductor ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Low tension cables are generally used up to 600 V 400 V 200 V 1000 V 600 V 400 V 200 V 1000 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The insulating material should have All of the listed here Low permittivity High dielectric strength High resistivity All of the listed here Low permittivity High dielectric strength High resistivity ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The thickness of the layer of insulation on the conductor, in cables, depends upon Voltage Current carrying capacity Reactive power Power factor Voltage Current carrying capacity Reactive power Power factor ANSWER DOWNLOAD EXAMIANS APP